EBM and Clinical Support Librarians@UCHChttps://creakysites.wordpress.com
A blog for medical students, faculty and librarians about their use of evidence based medicine, clinical literature, Web 2.0, sources and search strategiesThu, 28 Sep 2017 10:26:15 +0000enhourly1http://wordpress.com/https://s2.wp.com/i/buttonw-com.pngEBM and Clinical Support Librarians@UCHChttps://creakysites.wordpress.com
News, UCHC Graduates: Congratulations to the Class of 2011https://creakysites.wordpress.com/2011/05/16/news-uchc-graduates-congratulations-to-the-class-of-2011/
https://creakysites.wordpress.com/2011/05/16/news-uchc-graduates-congratulations-to-the-class-of-2011/#respondMon, 16 May 2011 20:11:41 +0000http://creakysites.wordpress.com/?p=19177]]>Congratulations to every graduate in the University of Connecticut Health Center Class of 2011

The focus and calm of U.S. Airways Captain Chesley Sullenberger can be appreciated by listening to the audio portion of this re-enactment, as he made critical analyses – over a period of only a few minutes – on how (and where) to land a disabled aircraft sinking earthward over a densely populated area. His decisions saved 100% of the lives on board that day.

Hang out with a bunch of epidemiologists long enough and eventually the conversation while turn to Causality. They will tell you that there are some big differences in semantics between linking causation, etiology and “proof” that X exposure caused Z disease or health condition. When I looked up the terms “causation” and “causality” (on Google) there were major sidetracks, such asWBA (Why-Because-Analysis) as in, Why did the airplane crash? Why did the reactor experience a meltdown?

Why? From the viewpoint of a physician, an engineer or an epidemiologist… because of X-Y-Z.

X-Y-Z could be bird strikes, human error, engine failure, weather conditions, crazed people bearing guns, lack of fuel or a thousand other accidents waiting to happen. Often the causes can be identified. Sometimes one can only attribute unanticipated events to gauzy, fuzzy concepts such as “it was a one in a million chance” or “this was God’s will”, “causes unknown” or just plain Karma. The harder (non-fuzzy) data can be applied towards improvements in systems design, development of new vaccines, engineering safety… all targeted towards avoidance of future accidents (or disease outbreaks).

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Epidemiologists save lives. Sometimes this association accumulates slowly… as in proving associations between Exposure X and development of Disease Y decades later. In other cases, evidence mounts up as an emergency, such as the identification of a novel virus identified as SARS in 2002. But linking health effects of exposures over a human life-span is so much more elusive than showing evidence that birds got sucked into a jet engine at 2,500 feet (as above).

Turning to the PubMed database, a screenshot below fromMedical Subject Headings List (MeSH) reveals how the term “causation” is mapped in the online thesaurus of medical indexing terms:

One way to search a large database such as PubMed is to simply type in some words – for an example, Liver Cancer AND Epidemiology. This pulls up over 18,000 retrievals… too many (!), but by then selecting and applying standard Limit Fields such as Language, Journal Subset, Age Group, Gender and others, the retrievals can be filtered down to a more-manageable number.

A more precise way to search a large database like PubMed is to use the Medical Subject Headings list. In the example below, the term Liver Cancer was typed into the MeSH search page, which maps automatically to the preferred MeSH term — Liver Neoplasms. While this search still retrieves thousands of citation, they can be limited by selecting and applying any MeSH Subheading (or clinical qualifiers) that are appropriate to the search. These subheadings include clinical concepts such as Virology, Immunology, Genetics, Epidemiology, Transmission and 80 others. Following is a screenshot of that type of search:

Remember that a librarian’s idea of “causality” could be defined, in part, by the number or types of clinical subqualifiers selected (immunology, virology, epidemiology and those types of “background” concepts) to be combined with the formal MeSH term.

There are many ways to search. It helps a novice medical searcher sometimes to tell them just that: There is no one right way to search. Sounds enigmatic and it is.

Here is an example which I found recently in the medical literature, a 2010 article which discusses application of Bradford Hill criteria (listed here):

A search for causality or epidemiology done in the resources indexed by GIDEON is quite unlike a search done in PubMed about the etiology of Liver Cancer. The producers collect, review and index factual data collected from around the globe; their data encompasses a wide and diverse group of human cultures, agricultural, societal, economic or environmental practices.

Below is a screenshot of one example of the type of data that can be searched on GIDEON: bacterium (causative agent), typhoid (identifiable infectious agent) and United States (location, recorded incidence over time):

If you are an American who reads news articles or listens daily to TV, then the budgetary skirmishes being played out between the two governing parties in Washington this month is enough to keep you up at night.

Do our elected government representatives deserve congratulations for haggling for days about and then (at the last minute) passing yet another temporary budget in order to keep the Federal government functioning on a daily basis?No.I say: Skip the drama and get back to governing the country in a cooperative, fair manner that represents the wishes of the people from your home state who voted for you. Sadly, long-term strategical thinking as well as respectful debate seem in short supply in our capital nowadays.

Am I a tea-partier? Nope. Is this blog about politics? Nope. What this blog is about is clinical education, health science research, instruction, trends in searching, public health, epidemiology, health care environments… and the infrastructure supporting these ideas and practices.

This month – from a public health viewpoint – it is troubling to read and hear about challenges to the health care safety net that the 2012 budget proposals being set forth by House Republicans have raised. If their version of health care reform is enacted, the health care delivery system for children, disabled individuals or senior citizens will be very different by year 2021.

Families USA, a nonprofit policy group, published a report last week that examines the Republicans’ health care reform proposals; it is available online at no cost by clicking here. It is highly critical of the proposals. Below are two screenshots from this report:

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At this link, the proposed 2012 budget set forth by the current administration can be read online via the Congressional Budget Office (216-page PDF). Also see a link to the Health Care section for specific numbers and rebuttals to the Republican proposals.

Tagged: Americans-Health Care, Healthcare Reform-U.S., United States Federal Government, United States-2011-Budgets]]>https://creakysites.wordpress.com/2011/04/13/news-health-disparities-americans-politics-the-health-care-safety-net/feed/1creakyNopeFamiliesUSAreportApril2011Table7News, University of Connecticut, New Leadership: Radio Interview with Dr. Susan Herbsthttps://creakysites.wordpress.com/2011/03/29/news-university-of-connecticut-new-leadership-radio-interview-with-dr-susan-herbst/
https://creakysites.wordpress.com/2011/03/29/news-university-of-connecticut-new-leadership-radio-interview-with-dr-susan-herbst/#respondTue, 29 Mar 2011 18:08:50 +0000http://creakysites.wordpress.com/?p=18933]]>Spring has finally arrived. At this time of year – March Madness – it is so easy to get caught up in the hoopla and excitement surrounding men and womens’ College Basketball. In 2011, this is made easier by the fact that both the UConn women and the men are doing very well in tournament play… Go Huskies!

However, a lasting and more significant change in academic leadership is set to take place in July 2011, with the arrival of the next University of Connecticut president, Dr. Susan Herbst.